Release 2.0 introduces full source-level debugging of optimised code, adaptive optimisation to shorten compile pauses, lightweight threads within Self, support for dynamically linking foreign functions, changing programs within Self and the ability to run the experimental Self graphical browser under OpenWindows. Designed for expressive power and malleability, Self combines a pure, prototype-based object model with uniform access to state and behaviour. Unlike other languages, Self allows objects to inherit state and to change their patterns of inheritance dynamically. Self's customising compiler can generate very efficient code compared to other dynamically-typed object-oriented languages.

Self is united to certain personal pronouns and pronominal adjectives to expressemphasis or distinction. Thus, for emphasis; I myself will write; I will examine for myself; thou thyself shalt go; thou shalt see for thyself; you yourself shall write; you shall see for yourself; he himself shall write; he shall examine for himself; sheherself shall write; she shall examine for herself; the child itself shall be carried; it shall be present itself. It is also used reflexively; as, I abhor myself; thou enrichest thyself; he loves himself; she admires herself; it pleases itself; we walue ourselves; ye hurry yourselves; they see themselves. Himself, herself, themselves, are used in the nominative case, as well as in the objective. "Jesus himself baptized not, but his disciples."

Self is used in the formation of innumerable compounds, usually of obvious signification, in most of which it denotes either the agent or the object of the action expressed by the word with which it is joined, or the person in behalf of whom it is performed, or the person or thing to, for, or towards whom or which a quality, attribute, or feeling expressed by the following word belongs, is directed, or is exerted, or from which it proceeds; or it denotes the subject of, or object affected by, such action, quality, attribute, feeling, or the like; as, self-abandoning, self-abnegation, self-abhorring, self-absorbed, self-accusing, self-adjusting, self-balanced, self-boasting, self-canceled, self-combating, self-commendation, self-condemned, self-conflict, self-conquest, self-constituted, self-consumed, self-contempt, self-controlled, self-deceiving, self-denying, self-destroyed, self-disclosure, self-display, self-dominion, self-doomed, self-elected, self-evolved, self-exalting, self-excusing, self-exile, self-fed, self-fulfillment, self-governed, self-harming, self-helpless, self-humiliation, self-idolized, self-inflicted, self-improvement, self-instruction, self-invited, self-judging, self-justification, self-loathing, self-loving, self-maintenance, self-mastered, self-nourishment, self-perfect, self-perpetuation, self-pleasing, self-praising, self-preserving, self-questioned, self-relying, self-restraining, self-revelation, self-ruined, self-satisfaction, self-support, self-sustained, self-sustaining, self-tormenting, self-troubling, self-trust, self-tuition, self-upbraiding, self-valuing, self-worshiping, and many others.